1366 - Incorrect integer value: '' for column `abtecsho_shop`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '6i2mv4vc7m20lfk1a3vhuu5ms6', '216.73.216.109', '1763197902', '1763197902', '/')

[XT SQL Error]